For more on this topic, see Names of Allah
Verily, Peace (al-Salām) is among the Names of Allah He has placed on the earth, so spread it between yourselves.
…And peace (salām) will be upon whoever follows the guidance.
Al-Salām in the Qur’an and Hadith
He is Allah, besides Whom there is no god; the King, the Holy, the Giver of peace, the Granter of security, Guardian over all, the Mighty, the Supreme, the Possessor of every greatness. Glory be to Allah from what they set up (with Him).
Allah, the Source of Perfection and Peace
You who believe, be steadfast in your devotion to God and bear witness impartially: do not let hatred of others lead you away from justice, but adhere to justice, for that is closer to awareness of God. Be mindful of God: God is well aware of all that you do.
How wonderful is the case of a believer! There is good for him in every situation and this applies only to a believer. If something good happens to him, he thanks [Allah] and this is good for him. When he faces adversity, he endures it patiently and this too is good for him.
The Giver of Safety and Peace
In the heart are disorders that cannot be remedied except by responding to Allah. In it is a desolate feeling that cannot be removed except by intimacy with Him. In it is sadness which will not leave except by happiness with knowing Him and truthfulness in its dealings. In it is anxiety that is not made tranquil except by gathering for His sake and fleeing to Him from His punishment. In it is a fire of regret which cannot be extinguished except by satisfaction with His commands, prohibitions, and decrees, and embracing patience with that until the time he meets Him. In it is a strong desire that will not cease until He is the only One who is sought. In it is a void that cannot be filled except by His love, turning to Him, always remembering Him, and being sincere to Him. Were a person to be given the entire world and everything in it, that would never fill the void.
…There has come to you from Allah a light and a clear Book through which Allah guides those who pursue His pleasure to the ways of peace (subul al-salām), brings them out from darknesses into the light by His permission, and guides them to a straight path.
Peace and Paradise
…We have detailed the verses for a people who remember. For them will be the Home of Peace (dār al-salām) with their Lord. And He will be their Protecting Friend because of [the good] they used to do.
O Allah, You are Peace and from You is peace. Blessed are you, the Majestic and the Noble.
Cultivate peace in your heart
The Day when there will not benefit [anyone] wealth or children, but only one who comes to Allah with a sound heart (qalbin salīm).
Verily, when the servant commits a sin, a black mark appears upon his heart. If he abandons the sin, seeks forgiveness, and repents, then his heart will be polished. If he returns to the sin, the blackness will be increased until it overcomes his heart. It is the covering that Allah has mentioned [in the ayah]: No, rather a covering is over their hearts from what they have earned.
Whoever increases his prayers for forgiveness, Allah will grant him relief from every worry, a way out from every hardship, and provide for him in ways he does not expect.
Spread peace and keep people safe from harm
Strive for excellence
Indeed the companions of Paradise, that Day, will be amused in [joyful] occupation—they and their spouses—in shade, reclining on adorned couches. For them therein is fruit, and for them is whatever they request [or wish]. [And] “Salām,” a word from a Merciful Lord.